WO2021078869A2 - Dispositif et procédé de fabrication de structure d'angle de cuve étanche et thermiquement isolante - Google Patents
Dispositif et procédé de fabrication de structure d'angle de cuve étanche et thermiquement isolante Download PDFInfo
- Publication number
- WO2021078869A2 WO2021078869A2 PCT/EP2020/079770 EP2020079770W WO2021078869A2 WO 2021078869 A2 WO2021078869 A2 WO 2021078869A2 EP 2020079770 W EP2020079770 W EP 2020079770W WO 2021078869 A2 WO2021078869 A2 WO 2021078869A2
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- WO
- WIPO (PCT)
- Prior art keywords
- primary insulating
- spacer
- primary
- blocks
- insulating blocks
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/025—Bulk storage in barges or on ships
- F17C3/027—Wallpanels for so-called membrane tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0358—Thermal insulations by solid means in form of panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/227—Assembling processes by adhesive means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0678—Position or presence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/013—Reducing manufacturing time or effort
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
- F17C2270/0107—Wall panels
Definitions
- the invention relates to the field of sealed and thermally insulating tanks with membranes.
- the invention relates to the field of sealed and thermally insulating tanks for the storage and / or transport of liquefied gas at low temperature, such as tanks for the transport of Liquefied Petroleum Gas (also called LPG) exhibiting by example a temperature between -50 ° C and 0 ° C, or for the transport of Liquefied Natural Gas (LNG) at approximately -162 ° C at atmospheric pressure.
- LPG Liquefied Petroleum Gas
- LNG Liquefied Natural Gas
- the liquefied gas is LNG, which is a mixture with a high methane content stored at a temperature of about -162 ° C at atmospheric pressure.
- Other liquefied gases can also be considered, including ethane, propane, butane or ethylene.
- Liquefied gases can also be stored under pressure, for example at a relative pressure between 2 and 20 bar, and in particular at a relative pressure close to 2 bar.
- the tank can be produced using different techniques, in particular in the form of an integrated membrane tank or a self-supporting tank.
- Document FR2691520 discloses a sealed and thermally insulating tank corner structure.
- This corner structure has a secondary corner structure formed by a secondary thermally insulating barrier and a secondary waterproof membrane.
- This corner structure further includes a plurality of primary insulating blocks attached juxtaposed to the secondary corner structure. Each of these primary insulating blocks has a portion of a primary thermally insulating barrier to which a corner angle is anchored.
- the position of the various primary insulating blocks is first determined and marked on the secondary corner structure.
- the primary insulating blocks are then glued and individually attached to the secondary corner structure.
- pressure is applied to the primary insulating blocks in order to achieve the fixing by gluing of said primary insulating blocks to the structure d. secondary angle.
- An idea underlying the invention is to facilitate the manufacture of a sealed and thermally insulating tank structure comprising a secondary insulating structure on which are fixed a plurality of primary insulating blocks.
- An idea underlying the invention is to allow the fixing of the primary insulating blocks on the secondary insulating structure with controlled positioning.
- an idea underlying the invention is to ensure the relative positioning of the various primary insulating blocks on the secondary insulating structure.
- an idea underlying the invention is to fix the primary insulating blocks on the secondary insulating structure while maintaining a predetermined spacing between said primary insulating blocks.
- the invention provides a method of manufacturing a tank structure element comprising the steps of: - provide a secondary insulating structure comprising a support surface, - provide a plurality of primary insulating blocks, - Positioning a spacer in an interposed position in which said spacer is interposed between a first primary insulating block of the plurality of primary insulating blocks and a second primary insulating block of the plurality of primary insulating blocks so that the spacer maintains a spacing between the first primary insulating block and the second primary insulating block within a tolerance interval, - fix the primary insulating blocks on the support surface of the secondary insulating structure keeping the spacer in the interposed position so as to maintain the distance between said first primary insulating block and second primary insulating block within the tolerance interval during fixing said first primary insulating block and second primary insulating block.
- this method makes it possible to ensure a controlled spacing between the primary insulating blocks since the spacer is kept interposed between the primary insulating blocks during the positioning of said primary insulating blocks on the secondary insulating structure.
- This spacing is furthermore also controlled when applying pressure to secure the primary insulating blocks to the secondary insulating structure, the spacer being maintained in cooperation with the primary insulating blocks during the application of this pressure.
- such a manufacturing method may include one or more of the following characteristics.
- the spacer is removed from the interposed position after fixing the primary insulating blocks to the support surface.
- the secondary insulating structure comprises a secondary insulating panel and a secondary waterproof membrane bonded to said insulating panel.
- the secondary insulating panel comprises an insulating lining and an internal rigid plate.
- the secondary insulating panel further comprises an external rigid plate, the insulating lining being interposed between the internal rigid plate and the external rigid plate.
- the insulating lining is glued to the internal rigid plate and / or to the external rigid plate.
- the internal rigid plate and / or the external rigid plate is made of wood, plywood or composite material.
- the secondary waterproof membrane comprises a laminated composite material comprising a metal layer, for example of aluminum, interposed between two layers of fibers, for example of glass fiber, and of resin.
- the secondary insulating structure is of parallelepiped shape, for example of rectangular parallelepiped shape.
- the insulating lining is an insulating foam, preferably an insulating foam reinforced with fibers, for example a polyurethane foam reinforced with glass fibers.
- the method further comprises: - prior to fixing the primary insulating blocks on the support surface, applying an adhesive to one of the support surface and one face of said primary insulating blocks intended to rest on the support surface, and the step of fixing the primary insulating blocks on the support surface of the secondary insulating structure comprising: - exerting pressure on one among the primary insulating blocks and the secondary insulating structure towards the other among the primary insulating blocks and the secondary insulating structure in order to fix said primary insulating blocks on the secondary insulating structure while maintaining the 'spacer interposed between the first primary insulating block and second primary insulating block.
- the method comprises a step of pressing the primary insulating blocks against the support surface of the secondary insulating structure.
- the support surface of the secondary insulating structure is pressed against the primary insulating blocks.
- the primary insulating blocks are fixed by bonding to the secondary insulating structure.
- this bonding is carried out by means of a polymer adhesive, preferably a polyurethane adhesive.
- the method further comprises the steps of: - providing a positioning device, said positioning device comprising a frame and the spacer, said frame having a bearing surface, the spacer projecting from the bearing surface of the frame so that the bearing surface has a first bearing portion and a second bearing portion located on either side of the spacer, - Arrange the positioning device on the primary insulating blocks so that the first bearing portion rests on the first primary insulating block and that the second bearing portion rests on the second primary insulating block, the step of exerting a pressure on said first primary insulating block and second primary insulating block comprising a bearing of the first bearing portion on the first primary insulating block and a bearing of the second bearing portion on the second primary insulating block.
- the frame can be used to apply pressure on the primary insulating blocks in order to fix them on the secondary insulating structure.
- the positioning device making it possible both to position the primary insulating blocks and to apply pressure to fix them to the structure. secondary insulation.
- the primary insulating blocks comprise an insulating element and a metal plate, the metal plate having a length greater than the length of the insulating element, the metal plate covering the insulating element so that two opposite edges of the metal plate develop longitudinally beyond the corresponding end faces of the insulating element.
- the primary insulating block has protruding portions formed by opposite edges of the metal plate, said opposite edges protruding from opposite faces of the insulating element.
- the insulating element of the primary insulating block can be made of many materials.
- the insulating element can be made of wood such as plywood, of insulating foam, such as polyurethane foam, for example a high density polyurethane foam reinforced with fibers, or even in a combination of materials, for example. a layer of insulating foam interposed between two plywood sheets or a layer of insulating foam associated with a plywood sheet.
- the metal plate can be made from many materials such as steel, Invar or the like.
- the primary insulating blocks have a primary insulating panel and a metal plate, the metal plate having edges projecting beyond the primary insulating panel, the method further comprising the steps of: - providing a positioning device, said positioning device comprising a frame and the spacer, the spacer comprising two fixing means, and wherein the step of positioning the spacer in the interposed position comprises securing the protruding edges of said first primary insulating block and second primary insulating block to the spacer by respective securing means of the spacer.
- Said fixing means can take many forms.
- these fixing means comprise clamps and the projecting edges of the primary insulating blocks are fixed by being clamped in said clamps.
- the spacer comprises two rails, said rails comprising grooves, said rails projecting from the frame in opposite orientations, the fixing of the projecting edges of the primary insulating blocks being carried out by inserting said projecting edges into the groove d 'a respective rail.
- a fixing means is a rail having a groove in which is inserted the protruding edge of a respective primary insulating block to fix said primary insulating block on the spacer.
- the insertion of the protruding edges of the metal plates into the grooves allows good cooperation between the spacer and the primary insulating blocks.
- this insertion makes it possible to block the movement of the primary insulating blocks towards each other but also makes it possible to keep the primary insulating blocks blocked in a direction of height of the primary insulating blocks.
- the cooperation between the metal plate of a primary insulating block and of two adjacent spacers makes it possible to lock the primary insulating block in position on the positioning device.
- this cooperation makes it possible to simultaneously move a set of primary insulating blocks each cooperating with two adjacent spacers.
- the spacer comprises a support and a pair of clamps arranged on the support with a predefined spacing, said clamps comprising an adjustment device and two movable legs, the adjustment device being able to move the two legs of simultaneously and at the same distance in opposite directions in order to define the spacing of said legs, the method further comprising the steps of: - housing the first primary insulating block in one of the clamps then adjusting the position of the legs of said clamp so that said first primary insulating block is blocked in said clamp, and - housing the second primary insulating block in the other clamp then adjusting the position of the legs of said clamp so that said second primary insulating block is blocked in said clamp and so that the median planes of said first primary insulating block and second insulating block primary are one distance apart in the tolerance interval.
- Such a spacer and the adjustment of the position of the tabs makes it possible to overcome the manufacturing tolerances of the primary insulating blocks while maintaining a controlled spacing between the primary insulating blocks.
- the legs of the clamps can be moved in order to adapt to the different primary insulating blocks while positioning the primary insulating blocks centrally at predetermined positions, said predetermined positions being spaced so as to guarantee the predetermined spacing between the blocks.
- the step of fixing the primary insulating blocks on the support surface of the secondary insulating structure includes a step of positioning the spacer relative to the end of the secondary insulating structure.
- Such a positioning means can take a plurality of forms.
- such a positioning means comprises a locking bar developing from one end of the frame perpendicular to the longitudinal direction of the frame, said locking bar forming a first stop surface, this first stop surface being intended for cooperate with a second stop surface carried by the secondary insulating structure so as to block the positioning device in position with respect to the secondary insulating structure.
- the method further comprises a step of bringing into abutment a first abutment surface integral with the movement of the spacer against a second abutment surface carried by the secondary insulating structure in order to block the relative displacement of the spacer.
- the first abutment surface being spaced from the spacer by a predetermined distance.
- the second abutment surface carried by the secondary insulating structure is a lateral end face of the secondary insulating structure.
- the positioning means comprises a first mark intended to cooperate with a second mark carried by the secondary insulating structure, the correspondence of said mark making it possible to determine the arrangement of the positioning device with respect to the secondary insulating structure.
- the method further comprises the step of matching a mark carried by the spacer and a mark carried by the secondary insulating structure so as to position said spacer at a predetermined location relative to the structure. secondary insulation.
- the method further comprises the steps of: - provide a plurality of spacers, - positioning each spacer in an interposed position in which each spacer is interposed between two adjacent primary insulating blocks of the plurality of primary insulating blocks so that said spacer maintains a spacing within the tolerance interval between the adjacent primary insulating blocks between which said spacer is inserted, - Fix the primary insulating blocks on the support surface of the secondary insulating structure by keeping said spacers interposed between said adjacent primary insulating blocks so as to maintain the spacing within the tolerance interval between said adjacent primary insulating blocks during fixing of said adjacent primary insulating blocks.
- the spacers are withdrawn from the interposed position after the fixing of the primary insulating blocks on the support surface.
- the method further comprises the step of providing a positioning device, said positioning device comprising a frame and the plurality of spacers, the spacers of the plurality of spacers being arranged on the frame at intervals. regular.
- the support surface has a first support surface portion and a second support surface portion forming an angle, a first spacer of the plurality of spacers being interposed between two adjacent primary insulating blocks positioned on the first support surface portion and a second spacer of the plurality of spacers being interposed between two adjacent primary insulating blocks positioned on the second support surface portion, the method further comprising the step of securing the first spacer and the second spacer on the move.
- Such a method makes it possible to correctly position all of the primary insulating blocks on a secondary insulating corner structure.
- this method makes it possible to manufacture a sealed and thermally insulating vessel corner structure in a simple, rapid and reliable manner by ensuring the spacing and positioning of the primary insulating blocks simultaneously on the two portions of the support surfaces of the vessel. the secondary insulating corner structure.
- the positioning device also has a gripping means.
- a gripping means is particularly useful in the context of a corner structure associated with spacers blocking the movement of the primary insulating blocks relative to the positioning device, such as for example with rails such as above, since it makes it possible to move the corner structure in one piece using the gripping means of the positioning device.
- the method further comprises joining the spacer (s) and the primary insulating blocks so that the primary insulating blocks and the spacer (s) form an integral unit in movement.
- the insulating blocks and the spacer (s) can be joined in many ways.
- the primary insulating blocks comprise a stud projecting from an internal face of the metal plate, said internal face being opposite to the insulating element.
- studs are, for example, studs allowing the attachment of tools subsequently used in the manufacture of the vessel.
- tools allow for example a recovery of forces for the fixing by welding of corrugated corner pieces ensuring the continuity of the waterproof membrane between two metal plates of two adjacent primary insulating blocks or for the fixing of pressure bars to exert a fixing pressure on intermediate primary insulating blocks interposed between the primary insulating blocks of two adjacent corner structures in the tank.
- the spacer can then be secured to the primary insulating blocks by cooperation with the studs of the primary insulating blocks.
- said positioning device may include one or more through holes and the step of inserting the spacer between the first primary insulating block and the second insulating block.
- primary comprises a step of inserting the stud (s) of the first primary insulating block and / or of the second primary insulating block in said through orifice and of fixing the positioning device on said stud (s) by a fixing means arranged on the stud such as a nut or other allowing to secure the positioning device and the stud.
- such a through orifice may be oblong so as to be able to adapt the position of said pin on the positioning device.
- these studs can be used in combination with a moving device such as a lifting crane, a winch, or the like to move the assembly formed by the spacer and the primary insulating blocks.
- a moving device such as a lifting crane, a winch, or the like to move the assembly formed by the spacer and the primary insulating blocks.
- the step of securing the spacer and the primary insulating blocks is preferably carried out prior to the step of applying an adhesive.
- the primary insulating blocks can be manipulated and moved in an integral manner and the application of the adhesive can be carried out on the different primary insulating blocks of this assembly during the same step of applying the adhesive for the assembly. set of said primary insulating blocks.
- the invention also provides a device for positioning primary insulating blocks of a sealed and thermally insulating tank structure element, said structural element comprising a secondary insulating block and a plurality of primary insulating blocks, the secondary insulating block having a supporting surface and the primary insulating blocks being intended to rest on said supporting surface, the positioning device comprising a frame and a plurality of spacers, the plurality of spacers being arranged on the frame along 'a longitudinal direction of the frame, said plurality of spacers projecting from the frame parallel to a direction perpendicular to the longitudinal direction of the frame, the spacers defining a predetermined spacing in the longitudinal direction of the predetermined frame and being intended to be interposed between two blocks adjacent primary insulators of the plurality of insulating blocks so that ma inserting a predetermined spacing in the longitudinal direction of the frame between two adjacent primary insulating blocks of the plurality of primary insulating blocks.
- Such a positioning device makes it possible to position primary insulating blocks in a reliable and simple manner on a secondary insulating structure.
- such a positioning device makes it possible to maintain a controlled spacing between the primary insulating blocks during their positioning and their attachment to the secondary insulating structure.
- such a positioning device may include one or more of the following characteristics.
- the spacers are arranged at regular intervals along the frame.
- the frame has a section of planar shape, the spacers projecting from a flat face of the frame.
- the primary insulating blocks have a primary insulating panel and a metal plate, the metal plate having edges projecting beyond the primary insulating panel.
- the spacers comprise fixing means, said fixing means being able to fix a projecting edge of a primary insulating block on the spacer.
- the primary insulating blocks have a primary insulating panel and a metal plate, the metal plate having edges projecting beyond the primary insulating panel, and in which the spacers comprise two rails, said rails comprising grooves. , the rails protruding from the frame in opposite orientations so that each groove is able to accommodate the protruding edge of a respective primary insulating block.
- the device further comprises a means for positioning the frame on the secondary insulating structure so as to arrange the spacers at predetermined positions relative to the secondary insulating structure.
- the spacers of the plurality of spacers comprise a pair of clamps arranged on a support with a predefined spacing between said clamps, the supports of the plurality of spacers forming the frame, said clamps comprising an adjustment device. and two movable legs, the adjustment device being able to move the two legs simultaneously and by an identical distance in opposite directions in order to define the spacing of said legs.
- the spacer and advantageously the plurality of spacers are made of a material chosen from wood and polymer materials, such as high density polyethylene, polytetrafluoroethylene.
- the spacer is moved in a plane defined by a gap in which the spacer is interposed between two primary insulating blocks, in order to remove the spacer, for example in a direction orthogonal or parallel to the surface of the spacer. support or in an oblique direction, that is to say with a component orthogonal to the support surface and with a component parallel to the support surface.
- FIG. 1 is a schematic perspective view of a sealed and thermally insulating vessel corner structure
- FIG. 2 is a schematic sectional representation of a positioning device according to a first embodiment cooperating with a plurality of primary insulating blocks as illustrated in FIG. 1;
- FIG. 3 is a schematic perspective view of the positioning device of FIG. 2 cooperating with a plurality of primary insulating blocks;
- FIG. 4 is a top view of an alternative embodiment of the positioning device of FIG. 2;
- FIG. 5 is a schematic perspective view of a positioning assembly comprising two positioning devices according to a second embodiment and cooperating with a corner structure as illustrated in FIG. 1;
- FIG. 6 is a schematic sectional representation of a positioning device according to the second embodiment cooperating with a plurality of primary insulating blocks;
- FIG. 7 is a schematic representation of a positioning device according to a third embodiment cooperating with a plurality of primary insulating blocks.
- a sealed and thermally insulating vessel includes a plurality of walls each formed of at least one thermally insulating barrier and at least one waterproofing membrane.
- the vessel walls comprise a secondary thermally insulating barrier, a secondary waterproofing membrane supported by the secondary thermally insulating barrier, a primary thermally insulating barrier attached to the secondary waterproofing membrane. and a primary waterproofing membrane supported by the primary thermally insulating barrier.
- a corner structure 1 is placed in a corner of the sealed and thermally insulating tank, at the junction between two walls.
- This corner structure 1 makes it possible to ensure the continuity of the various thermally insulating barrier and waterproofing membrane at the junction between a first tank wall and a second tank wall inclined with respect to one another by a determined angle, for example an angle of 90 ° or an angle of 135 °.
- such a corner structure 1 comprises a secondary corner structure 2 on which a plurality of primary insulating blocks 3 rest.
- the secondary corner structure 2 comprises a portion of secondary thermally insulating barrier on which a portion of secondary waterproof membrane is bonded. More particularly, the secondary corner structure 2 comprises a first secondary insulating panel 4 and a second secondary insulating panel 5.
- These secondary insulating panels 4, 5 each comprise a rigid outer plate 6, for example made of plywood, an insulating lining 7, for example made of fiber-reinforced polyurethane foam, and a rigid internal plate 8, for example made of plywood or a composite material. In these secondary insulating panels 4, 5, the internal plate 8 is parallel to the bottom plate 6.
- the two secondary insulating panels 4, 5 have a bevelled face 9 and are arranged end to end at the level of said bevelled face 9 so that the first secondary panel 4 develops in the plane of the first tank wall and the second panel secondary insulator 5 develops in the plane of the second vessel wall, the first vessel wall and the second wall forming the angle of the vessel.
- the secondary waterproof membrane portion comprises a layer of rigid waterproof composite film 10 bonded to the rigid internal plate 8 of each of the secondary insulating panels 4, 5.
- These waterproof composite films 10 are for example made of a laminated composite material comprising a layer of aluminum sandwiched between two layers of glass fibers and resin.
- These waterproof composite films 10 are connected in a sealed manner, for example by a flexible waterproof composite film 11.
- This flexible waterproof composite film 11 is for example made of a laminated composite material comprising a layer of aluminum interposed between two layers of glass fibers.
- the first secondary insulating panel 4 and the portion of secondary waterproof membrane carried by said first secondary insulating panel 4 form a first support surface of the secondary corner structure 2.
- the second secondary insulating panel 5 and the portion of membrane. secondary waterproof carried by said second secondary insulating panel 4 form a second support surface of the secondary corner structure 2.
- a primary insulating block 3 comprises a first primary block 12 of parallelepiped shape, a second primary block 13 of parallelepiped shape and a metal angle 14.
- a first wing 15 of the metal angle 14 is fixed on the first primary block 12 and a second wing 16 of the metal angle iron 14 is fixed on the second primary block 13.
- the first wing 15 and the second wing 16 develop in respective planes at an angle corresponding to the angle of tank.
- the metal angle iron 14 makes it possible, for example, to fix the primary waterproof membrane in a sealed manner to the primary insulating block 3.
- this metal angle iron 14 can allow the waterproof fixing of corrugated corner pieces (not shown) so as to ensure l sealing of the primary waterproof membrane between two adjacent metal angles 14.
- the first primary block 12 and the second primary block have identical dimensions. Furthermore, the metal angle iron 14 has a length dimension, taken in the direction of the edge formed by said metal angle iron 14, greater than the dimension of the primary blocks 12 and 13 in said direction.
- the metal angle iron 14 is fixed on the primary blocks 12 and 13 so that each wing 15 and 16 of the said metal angle iron 14 has two protruding edges 17 opposite and developing beyond the corresponding edges of the primary blocks 12 and 13. In other words , the projecting edges 17 of the wings 15 and 16 protrude from two opposite edges of the primary blocks 12 and 13.
- each wing 15, 16 of the metal angles 14 have on their internal face, that is to say a face opposite to the primary blocks 12 and 13, studs 26 projecting towards the inside. These studs 26 allow the attachment of tools used later in the manufacture of the sealed and thermally insulating tank.
- a plurality of primary insulating blocks 3 are attached to the secondary corner structure 2 along a ridge 18 formed between the secondary insulating panels 4 and 5.
- Each primary insulating block 3 is attached to the edge. secondary corner structure 2 so that the first primary block 12 is fixed on the first supporting surface of the secondary corner structure 2 and the second primary block 13 is fixed on the second supporting surface of the secondary corner structure secondary angle 2.
- the primary blocks 12 and 13 are fixed by means of an adhesive on the support surfaces of the secondary corner structure 2.
- This adhesive is, for example, a polymer adhesive such as a polyurethane adhesive.
- the primary blocks 12 and 13 are fixed to the portions of flexible composite film 11 fixed to the secondary insulating panels 4 and 5.
- a positioning device 19 is used.
- Figures 2 to 7 illustrate different embodiments of such a positioning device 19 as well as the use of this positioning device 19 in order to satisfactorily fix the primary insulating blocks 3 on the secondary corner structure 2.
- Figures 2 and 3 illustrate a positioning device 19 according to a first embodiment.
- the positioning device comprises a frame 20 and a plurality of spacers 21.
- the frame 20 is in the form of a parallelepiped, typically in the form of a bar or plate of rectangular section.
- This frame 20 has a planar external face 22.
- the spacers 21 protrude from said flat outer face 22 of the frame 20. More particularly, the spacers 21 have a section of rectangular shape and develop perpendicularly to the outer face 22.
- each spacer 21 has a first face 23 perpendicular to a direction. longitudinal side of the frame 20 and a second face 24, opposite to the first face 23, also developing perpendicular to the longitudinal direction of the frame 20.
- the first face 23 and the second face 24 of the spacer 21 are parallel and spaced apart by a predetermined spacing 25. This spacing 25 corresponds to the minimum spacing that one wishes to keep between two primary insulating blocks 3 when positioning and fixing said primary insulating blocks 3 on the secondary corner structure 2.
- the frame 20 has a plurality of through holes 27 allowing the passage of the studs 26 through said frame 20.
- the positioning device 19 is arranged on a plurality of adjacent primary insulating blocks 3.
- the outer face 22 of the frame 20 is brought to bear against an inner face 29 of the first wing 15 of the metal angles 14 of the primary insulating blocks 3.
- the studs 26 of the primary insulating blocks 3 are housed in the orifices. 27 of the frame.
- the spacers 21 of the positioning device 19 are brought between the adjacent primary insulating blocks 3.
- each spacer 21 is interposed between two adjacent primary insulating blocks 3.
- the studs 26 pass through through openings 27 of the frame 20.
- the outer surface 22 of the frame has a plurality of bearing portions 30 resting on the inner face 29 of the first wings 15 of the metal angles 14.
- the spacers 21 make it possible to ensure a defined and fixed distance between two adjacent primary insulating blocks 3. Indeed, the spacers 21 being interposed between two adjacent primary insulating blocks 3, the opposite faces 23 and 24 of said spacers 21 form abutment surfaces preventing the approach of said adjacent primary insulating blocks 3. Thus, once the positioning device is arranged on the primary insulating blocks, a minimum distance separates two adjacent primary insulating blocks 3 from the plurality of primary insulating blocks 3 on which the positioning device is arranged. Many means can make it possible to secure the primary insulating blocks 3 and the positioning device 19. In the embodiment shown, the positioning device 19 is secured to all the primary insulating blocks 3 which are intended to be fixed to the two insulating panels. secondary 4, 5.
- the positioning device can be secured only to a part of the primary insulating blocks 3 intended to be fixed to the two secondary insulating panels 4, 5, that is to say say at least two sets of two primary insulating blocks 3.
- nuts (not shown) can be screwed onto the studs 26 in order to clamp the frame 20 between said nuts and the internal face 29 of the first wings 15 of the metal angles 14. These nuts are removed prior to the removal of the positioning device after the fixing by gluing of the primary insulating blocks 3 on the secondary angle structure 2.
- the positioning device 19 is arranged on the primary insulating blocks 3, it becomes possible to handle the primary insulating blocks 3 in one piece using an overhead crane, a jib crane or any other device. lifting.
- This common movement of the primary insulating blocks 3 enables the fixing of the primary insulating blocks 3 to the secondary corner structure 2 in a grouped fashion.
- the primary insulating blocks 3 fixed to the positioning device 19 are all glued together during the same gluing step.
- the assembly formed by the primary insulating blocks 3 and the positioning device 19 is moved by means of a winch, a crane or any other suitable device so as to make accessible all of the external faces of the primary insulating blocks. 3.
- the primary insulating blocks are raised to a sufficient height to allow access to said outer faces of the primary insulating blocks 3 or else this assembly is turned upside down to allow access to said outer faces.
- the primary insulating blocks 3 are glued, they are then positioned on the secondary corner structure 2 together.
- the positioning device 19 is maintained in cooperation with the primary insulating blocks 3 in order to maintain control of the spacing between the adjacent primary insulating blocks 3.
- a mark is made on the secondary corner structure 2.
- This mark can be made in many ways, for example by means of '' a stroke of a pencil, a piece of tape or the like.
- This mark indicates the desired position of a primary insulating block 3 at the end of the plurality of primary insulating blocks 3.
- This mark makes it possible to control the positioning of the primary insulating block 3 at the end relative to the edge of the corner structure. secondary 2.
- this mark also allows the positioning of said primary insulating blocks 3 with respect to the edges of the secondary corner structure 2.
- the frame 20 carries a tab (not shown) projecting parallel to the spacers.
- This tab makes it possible to position the frame 20 relative to a side surface of the secondary corner structure 2, for example the side surface illustrated in FIG. 1 at reference 52.
- this tab forms a first stop surface and the lateral surface 52 forms a second abutment surface cooperating together to position the tab, and therefore the plurality of primary insulating blocks 3, with respect to the secondary corner structure 2.
- the primary insulating blocks 3 on the secondary corner structure 2 When positioning the primary insulating blocks 3 on the secondary corner structure 2, the primary insulating blocks are arranged above the support surfaces of the secondary corner structure 2 and the assembly formed by the primary insulating blocks 3 and the positioning device 19 is translated until the leg of the frame 20 is brought into contact against the side surface 52 of the secondary corner structure 2. Then, a single vertical translation makes it possible to apply the primary insulating blocks 3 on the secondary corner structure 2.
- This variant has the advantage of avoiding contact between the primary insulating blocks 3 and the secondary corner structure 2 before having correctly determined the position of the primary insulating blocks 3 with respect to the secondary angle structure 2. In addition, this variant makes it possible to dispense with the step of marking the mark of the position of the primary insulating block 3 at the end on the secondary angle structure 2.
- a release on the reference point forming the stop surface carried by the secondary corner structure 2 can be performed.
- the secondary angle structure 2 is mounted in a fixed or adjustable manner, for example by sliding, on the frame 20. The wedging of the two opposite sides of the secondary angle structure 2 ensures an absence of translation of the set of primary insulating blocks 3 when positioning said primary insulating blocks 3 on the secondary corner structure 2 and good management of the gap between the end primary insulating block 3 and the edge of the secondary corner structure 2 .
- This pressure is advantageously exerted by means of the positioning device 19, the bearing portions 30 of the external face 22 of the frame 20 being pressed against the internal faces 29 of the primary insulating blocks 3.
- this pressure is advantageously exerted by means of the positioning device 19, the bearing portions 30 of the external face 22 of the frame 20 being pressed against the internal faces 29 of the primary insulating blocks 3.
- the application of this pressure to the means of the positioning device 19 allows the spacers 21 to be maintained in a simple manner between the adjacent primary insulating blocks 3.
- the frame 20 is for example mounted to move on a support.
- a support has a force-absorbing member such as a plate, a tubular structure or any other means ensuring good absorption of the forces.
- the secondary corner structure 2 is arranged on and / or against this force-absorbing member.
- the primary insulating blocks 3 are arranged on the frame 20, for example as part of a frame 20, as shown in Figures 2 and 4 by screwing nuts (not shown) on the studs 26 to clamp the frame 20 between said nuts and the internal face 29 of the first wings 15 of the metal angles 14.
- the frame 20 on which the primary insulating blocks 3 are mounted is then moved in the direction of the force-taking member so as to put in compressing the primary insulating blocks 3 and the secondary corner structure 2 and fixing said primary insulating blocks 3 on said secondary corner structure 2.
- the positioning device 19 is removed and the construction of the sealed and thermally insulating tank can be continued.
- the frame 20 and the spacers 21 are moved so that the spacers 21 each move in the plane of the gap in which said spacer 21 is interposed. between two primary insulating blocks 3.
- This movement may in particular correspond to a vertical translation, orthogonal to the support surface, in a direction opposite to the primary insulating blocks 3, to a horizontal translation, parallel to the support surface, in an opposite direction to the primary insulating blocks 3, or an oblique translation, that is to say with a component orthogonal to the support surface and with a component parallel to the support surface.
- the spacers 21 are advantageously made of materials having a low coefficient of friction with the contact surfaces of the primary elements 3. Also, the spacers 21 are advantageously made of a material chosen from polymeric materials, such as high density polyethylene, polytetrafluoroethylene and wood.
- Figure 4 illustrates a variant embodiment of the positioning device 19 illustrated in Figure 3.
- the through holes 27 are oblong in shape so as to allow movement of the primary insulating blocks 3 in the longitudinal direction of the frame 20 between two adjacent spacers 21.
- Such through holes 27 allow better management of the positioning tolerances of the studs 26 on the metal angles 14.
- Figures 5 and 6 illustrate a second embodiment of the positioning device 19.
- each spacer 21 comprises two rails 31.
- These rails 31 have a profile in the shape of a "U” so as to form a groove 32.
- the rails 31 protrude from the frame 20 perpendicularly to the longitudinal direction of the frame 20.
- the two rails 31 of a spacer 21 have opposite orientations.
- a first groove 32 of a spacer 21 faces a first end of the frame 20 and the second groove 32 of said spacer 21 faces a second end of the frame 20, said second end of the frame 20 being opposite the first. end of frame 20.
- the two rails are arranged on the frame 20 so that a bottom of the grooves 32 is spaced by the desired predetermined distance to space two adjacent primary insulating blocks 3.
- the spacers 21 of the positioning device 19 are inserted between the metal angles 14 of two adjacent primary insulating blocks 3 from a side of said primary insulating blocks 3. More particularly, the positioning device 19 is arranged on the primary insulating blocks 3 by accommodating the projecting edges 17 of a wing 15 or 16 of the metal angles 14 of the primary insulating blocks 3 in the grooves 32.
- the grooves 32 of the two rails 31 of the same spacer 21 each cooperate with the projecting edge of a respective primary insulating block 3, said primary insulating blocks 3 being adjacent and kept separate with a predetermined spacing defined by the distance between both rails 31.
- the positioning device further comprises an end rail 33 arranged at each end of the frame 20.
- These end rails 33 are similar to the rails 31 of the spacers 21 and protrude from the frame 20 in an orientation opposite to the adjacent rail 31.
- the groove of the end rail 33 faces towards and opposite the groove 32 of the rail 31 of the spacer 21 adjacent to the end rail 33.
- the positioning device When the positioning device is arranged on all of the primary insulating blocks 3, the projecting edges 17 of said primary insulating blocks 3 are all housed in the groove of a respective rail 31 or 33. Thus, it is possible to move all of the primary insulating blocks 3 in one piece.
- the positioning device is moved by a horizontal translation by sliding the groove of the rails 31, 33 with respect to the projecting edges 17 of the adjacent primary insulating blocks 3. .
- FIG. 6 illustrates an assembly making it possible to move in one piece all of the primary insulating blocks 3 intended to be installed on the secondary corner structure 2.
- the positioning device comprises at each of the ends of the frame 20 a threaded rod 34.
- a first positioning device 35 is arranged on the primary insulating blocks 3 by inserting the projecting edges 17 of the first wing 15 of the metal angles 14 of the primary insulating blocks 3 in the grooves of the rails 31 and 33 of said first positioning device 35, as illustrated by arrow 36.
- a second positioning device 37 is arranged on the primary insulating blocks 3 by inserting the projecting edges 17 of the second wing 16 of the metal angles 14 of the primary insulating blocks 3 in the grooves of the rails 31 and 33 of said second positioning device 37, as illustrated by arrow 38.
- the first positioning device 35 and the second positioning device 37 are secured by means of spacers 39.
- Each spacer 39 comprises a bar, the ends of which have a through-hole 40.
- a spacer 39 is attached to each end of the positioning devices 35. and 37, the threaded rods 34 of the two positioning devices 35 and 37 being housed in the through holes 40.
- a nut (not shown) screwed onto the projecting portions of the threaded rods 34 makes it possible to secure the spacers 39 with the positioning devices 35 and 37.
- the first positioning device 35 and the second positioning device 27 cannot be removed from the primary insulating blocks 3.
- the cooperation between the rails 31 and 33 and the projecting edges 17 block the positioning devices 35 and 37 moving in a direction other than the direction of insertion of the projecting edges 17 in the rails 31 and 33 and, on the other hand, the spacers 39 prevent relative movement between said positioning devices 35 and 37.
- first positioning device 35 and the second positioning device 37 form with the spacers 39 and the primary insulating blocks 3 an assembly that can be moved in one piece.
- a gripping means 41 having a "U" profile as illustrated in Figure 6.
- This gripping means 41 comprises a bar 42 provided with a lifting ring 43 at its center.
- the gripping means 41 further comprises two tabs 44 each projecting from a respective end of the bar 42.
- One end of the tabs 44 opposite the bar 42 has a through orifice 45 which can cooperate with the threaded rods 34 of one. positioning devices 35 or 37, the second positioning device 37 in FIG.
- FIG. 7 schematically illustrates a third embodiment of the positioning device 19.
- the positioning device 19 comprises a support 46 on which are arranged a plurality of clamps 47.
- Each clamp 47 comprises an adjustment device 48 and two tabs 49.
- the adjustment device 48 allows the movement of the tabs 49 symmetrically with respect to a center 50 of the clamp 47. This self-centering is for example achieved by means of 'a self-centered grasshopper type mechanism.
- the clamps 47 are arranged on the support 46 according to a determined spacing 51 of the centers 50.
- each clamp 47 is adjusted so that the tabs 49 grip said primary insulating blocks 3, for example at the level of the projecting edges 17. Due to the adjustment device 48 allowing the self-centering of the tabs 49 during their adjustment in position, this clamping of the primary insulating blocks 3 is such that a center of said primary insulating blocks 3, located for example at the level of the studs 26, is arranged at the level of the center 50 clamps 47. Thus, the center of the adjacent primary insulating blocks 3 is separated from the spacing 51, so that two adjacent primary insulating blocks 3 are separated by a controlled spacing.
- Figure 1 illustrates a vessel angle structure for a 90 ° angle, but the invention applies analogously for different vessel angles such as, for example, a 135 ° vessel angle.
- such a method or device can also be used to ensure the positioning and fixing of one or more primary insulating blocks 3, as described above, straddling two secondary insulating panels 4, 5 positioned one in one. next to each other along the corner of the tank.
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Abstract
Description
- fournir une structure isolante secondaire comportant une surface de support,
- fournir une pluralité de blocs isolants primaires,
- positionner un espaceur dans une position intercalée dans laquelle ledit espaceur est intercalé entre un premier bloc isolant primaire de la pluralité de blocs isolants primaires et un deuxième bloc isolant primaire de la pluralité de blocs isolants primaires de sorte que l’espaceur maintienne un écartement entre le premier bloc isolant primaire et le deuxième bloc isolant primaire dans un intervalle de tolérance,
- fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire en conservant l’espaceur dans la position intercalée de manière à maintenir l’écartement entre lesdits premier bloc isolant primaire et deuxième bloc isolant primaire dans l’intervalle de tolérance lors de la fixation desdits premier bloc isolant primaire et deuxième bloc isolant primaire.
- préalablement à la fixation des blocs isolants primaires sur la surface de support, appliquer un adhésif sur l’une parmi la surface de support et une face desdits blocs isolants primaires destinée à reposer sur la surface de support, et
l’étape de fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire comportant :
- exercer une pression sur l’un parmi les blocs isolants primaires et la structure isolante secondaire en direction de l’autre parmi les blocs isolants primaires et la structure isolante secondaire afin de fixer lesdits blocs isolants primaires sur la structure isolante secondaire tout en maintenant l’espaceur intercalé entre les premier bloc isolant primaire et deuxième bloc isolant primaire.
- fournir un dispositif de positionnement, ledit dispositif de positionnement comportant un bâti et l’espaceur, ledit bâti présentant une surface d’appui, l’espaceur faisant saillie de la surface d’appui du bâti de sorte que la surface d’appui présente une première portion d’appui et une deuxième portion d’appui situées de part et d’autre de l’espaceur,
- agencer le dispositif de positionnement sur les blocs isolants primaires de sorte que la première portion d’appui repose sur le premier bloc isolant primaire et que la deuxième portion d’appui repose sur le deuxième bloc isolant primaire, l’étape d’exercer une pression sur lesdits premier bloc isolant primaire et deuxième bloc isolant primaire comportant un appui de la première portion d’appui sur le premier bloc isolant primaire et un appui de la deuxième portion d’appui sur le deuxième bloc isolant primaire.
- fournir un dispositif de positionnement, ledit dispositif de positionnement comportant un bâti et l’espaceur, l’espaceur comportant deux moyens de fixation,
et dans lequel l’étape de positionner l’espaceur dans la position intercalée comporte la fixation des bords saillants desdits premier bloc isolant primaire et deuxième bloc isolant primaire sur l’espaceur par un moyen de fixation respectif de l’espaceur.
- loger le premier bloc isolant primaire dans l’une des pinces puis régler la position des pattes de ladite pince de sorte que ledit premier bloc isolant primaire soit bloqué dans ladite pince, et
- loger le deuxième bloc isolant primaire dans l’autre pince puis régler la position des pattes de ladite pince de sorte que ledit deuxième bloc isolant primaire soit bloqué dans ladite pince et de sorte que des plans médians desdits premier bloc isolant primaire et deuxième bloc isolant primaire soient distant d’un écartement dans l’intervalle de tolérance.
- fournir une pluralité d’espaceurs,
- positionner chaque espaceur dans une position intercalée dans laquelle chaque espaceur est intercalé entre deux blocs isolants primaires adjacents de la pluralité de blocs isolants primaires de sorte que ledit espaceur maintienne un écartement dans l’intervalle de tolérance entre les blocs isolants primaires adjacents entre lesquels ledit espaceur est intercalé,
- fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire en conservant lesdits espaceurs intercalés entre lesdits blocs isolants primaires adjacents de manière à maintenir l’écartement dans l’intervalle de tolérance entre lesdits blocs isolants primaires adjacents lors de la fixation desdits blocs isolants primaires adjacents.
Claims (18)
- Procédé de fabrication d’un élément (1) de structure de cuve comportant les étapes de :
- fournir une structure isolante secondaire (2) comportant une surface de support,
- fournir une pluralité de blocs isolants primaires (3),
- positionner un espaceur (21, 46, 47) dans une position intercalée dans laquelle l’espaceur est intercalé entre un premier bloc isolant primaire de la pluralité de blocs isolants primaires (3) et un deuxième bloc isolant primaire de la pluralité de blocs isolants primaires (3) de sorte que l’espaceur (21, 46, 47) maintienne un écartement entre le premier bloc isolant primaire et le deuxième bloc isolant primaire dans un intervalle de tolérance,
- fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire (2) en conservant l’espaceur (21, 46, 47) dans la position intercalée de manière à maintenir l’écartement entre lesdits premier bloc isolant primaire et deuxième bloc isolant primaire dans l’intervalle de tolérance lors de la fixation desdits premier bloc isolant primaire et deuxième bloc isolant primaire, et
- retirer l’espaceur (21, 46, 47) de la position intercalée après la fixation des blocs isolants primaires sur la surface de support. - Procédé de fabrication selon la revendication 1, comportant en outre :
- préalablement à la fixation des blocs isolants primaires sur la surface de support, appliquer un adhésif sur l’une parmi la surface de support et une face desdits blocs isolants primaires destinée à reposer sur la surface de support, et
l’étape de fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire comportant :
- exercer une pression sur l’un parmi les blocs isolants primaires et la structure isolante secondaire en direction de l’autre parmi les blocs isolants primaires et la structure isolante secondaire afin de fixer lesdits blocs isolants primaires sur la structure isolante secondaire tout en maintenant l’espaceur (21, 46, 47) dans la position intercalée. - Procédé de fabrication selon la revendication 2, comportant en outre les étapes de :
- fournir un dispositif de positionnement (19), ledit dispositif de positionnement (19) comportant un bâti (20) et l’espaceur (21), ledit bâti (20) présentant une surface d’appui (22), l’espaceur (21) faisant saillie de la surface d’appui (22) du bâti (20) de sorte que la surface d’appui (22) présente une première portion d’appui (30) et une deuxième portion d’appui (30) situées de part et d’autre de l’espaceur (21),
- agencer le dispositif de positionnement (19) sur les blocs isolants primaires (3) de sorte que la première portion d’appui (30) repose sur le premier bloc isolant primaire et que la deuxième portion d’appui (30) repose sur le deuxième bloc isolant primaire, l’étape d’exercer une pression sur lesdits premier bloc isolant primaire et deuxième bloc isolant primaire comportant un appui de la première portion d’appui (30) sur le premier bloc isolant primaire et un appui de la deuxième portion d’appui (30) sur le deuxième bloc isolant primaire. - Procédé de fabrication selon la revendication 1 ou 2, dans lequel les blocs isolants primaires présentent un panneau isolant primaire (12, 13) et une plaque métallique (14), la plaque métallique (14) présentant des bords (17) faisant saillie au-delà du panneau isolant primaire (12, 13), le procédé comportant en outre les étapes de :
- fournir un dispositif de positionnement (19), ledit dispositif de positionnement (19) comportant un bâti (20) et l’espaceur (21), l’espaceur (21) comportant deux moyens de fixation (31),
et dans lequel l’étape de positionner l’espaceur (21) dans la position intercalée comporte la fixation des bords (17) saillants desdits premier bloc isolant primaire et deuxième bloc isolant primaire sur l’espaceur (21) par un moyen de fixation (31) respectif de l’espaceur (21). - Procédé de fabrication selon la revendication 1 ou 2, dans lequel l’espaceur comporte un support (46) et une paire de pinces (47) agencées sur le support (46) avec un espacement (51) prédéfini, lesdites pinces (47) comportant un dispositif de réglage (48) et deux pattes (49) mobiles, le dispositif de réglage (48) étant apte à déplacer les deux pattes de façon simultanée et d’une même distance selon des sens opposés afin de définir l’écartement desdites pattes, le procédé comportant en outre les étapes de :
- loger le premier bloc isolant primaire dans l’une des pinces (47) puis régler la position des pattes (49) de ladite pince (47) de sorte que ledit premier bloc isolant primaire soit bloqué dans ladite pince (47), et
- loger le deuxième bloc isolant primaire dans l’autre pince (47) puis régler la position des pattes (49) de ladite pince (47) de sorte que ledit deuxième bloc isolant primaire soit bloqué dans ladite pince (47) et de sorte que des plans médians desdits premier bloc isolant primaire et deuxième bloc isolant primaire soient distant d’un écartement dans l’intervalle de tolérance. - Procédé de fabrication selon l’une des revendications 1 à 5, dans lequel l’étape de fixer les blocs isolants primaires (3) sur la surface de support de la structure isolante secondaire (2) comporte une étape de positionner l’espaceur (21, 46, 47) par rapport à l’extrémité de la structure isolante secondaire (2).
- Procédé de fabrication selon l’une des revendications 1 à 6, comportant en outre les étapes de :
- fournir une pluralité d’espaceurs (21, 46, 47),
- positionner chaque espaceur (21, 46, 47) de la pluralité d’espaceur (21, 46, 47) dans une position intercalée dans laquelle chaque espaceur est intercalé entre deux blocs isolants primaires adjacents de la pluralité de blocs isolants primaires (3) de sorte que ledit espaceur (21, 46, 47) maintienne un écartement dans l’intervalle de tolérance entre les blocs isolants primaires adjacents entre lesquels ledit espaceur (21, 46, 47) est intercalé,
- fixer les blocs isolants primaires sur la surface de support de la structure isolante secondaire (2) en conservant lesdits espaceurs (21, 46, 47) dans la position intercalée de manière à maintenir l’écartement dans l’intervalle de tolérance entre lesdits blocs isolants primaires adjacents lors de la fixation desdits blocs isolants primaires adjacents ; et
- retirer les espaceurs (21, 46, 47) de la position intercalée. - Procédé de fabrication selon la revendication 7, comportant en outre l’étape de fournir un dispositif de positionnement (19), ledit dispositif de positionnement (19) comportant un bâti (20) et la pluralité d’espaceurs (21), les espaceurs (21) de la pluralité d’espaceurs étant agencés sur le bâti à intervalles réguliers.
- Procédé de fabrication selon l’une des revendications 6 à 8, dans lequel la surface de support présente une première portion de surface de support et une deuxième portion de surface de support formant un angle, un premier espaceur de la pluralité d’espaceurs (21, 46, 47) étant positionné dans une position intercalée dans laquelle ledit premier espaceur est intercalé entre deux blocs isolants primaires adjacents positionnés sur la première portion de surface de support et un deuxième espaceur de la pluralité d’espaceurs (21, 46, 47) étant positionné dans une position intercalée dans laquelle ledit deuxième espaceur est intercalé entre deux blocs isolants primaires adjacents positionnés sur la deuxième portion de surface de support, le procédé comportant en outre l’étape de solidariser le premier espaceur et le deuxième espaceurs en déplacement.
- Procédé de fabrication selon l’une des revendications 1 à 8, comportant en outre solidariser l’espaceur et les blocs isolants primaires (3) de sorte que les blocs isolants primaires (3) et l’espaceur forment un ensemble solidaire en déplacement.
- Procédé de fabrication selon l’une quelconque des revendications 1 à 10, dans lequel l’espaceur (21, 46, 47) est réalisé dans un matériau choisi parmi le bois et les matériaux polymères, tels que le polyéthylène haute densité, le polytétrafluoroéthylène.
- Procédé de fabrication selon l’une quelconque des revendications 1 à 11, dans lequel l’espaceur (21, 46, 47) est déplacé dans un plan défini par un interstice dans lequel l’espaceur (21, 46, 47) est intercalé entre deux blocs isolants primaires (3) afin de retirer l’espaceur (21, 46, 47).
- Dispositif de positionnement (19) de blocs isolants primaires d’un élément de structure (1) de cuve étanche et thermiquement isolante, ledit élément de structure comportant un bloc isolant secondaire (2) et une pluralité de blocs isolants primaires (3), le bloc isolant secondaire (2) présentant une surface de support et les blocs isolants primaires (3) étant destinés à reposer sur ladite surface de support, le dispositif de positionnement comportant un bâti et une pluralité d’espaceurs (21, 46, 47), la pluralité de d’espaceurs (21, 46, 47) étant agencée sur le bâti le long d’une direction longitudinale du bâti, ladite pluralité d’espaceurs (21, 46, 47) faisant saillie du bâti parallèlement à une direction perpendiculaire à la direction longitudinale du bâti, les espaceurs (21, 46, 47) définissant un écartement prédéterminé selon la direction longitudinale du bâti prédéterminée et étant destinés à être intercalés entre deux blocs isolants primaires adjacents de la pluralité de blocs isolants (3) de manière à maintenir un écartement prédéterminé selon la direction longitudinale du bâti entre deux blocs isolants primaires adjacents de la pluralité de blocs isolants primaires (3).
- Dispositif de positionnement selon la revendication 13, dans lequel les espaceurs (21, 46, 47) sont agencés à intervalles réguliers le long du bâti.
- Dispositif de positionnement selon la revendication 13 ou 14, dans lequel le bâti (20) présente une section de forme plane, les espaceurs (21) faisant saillie d’une face (22) plane du bâti (20).
- Dispositif de positionnement selon la revendication 14 ou 15, dans lequel les blocs isolants primaires présentent un panneau isolant primaire (12, 13) et une plaque métallique (14), la plaque métallique (14) présentant des bords (17) faisant saillie au-delà du panneau isolant primaire (12, 13), et dans lequel les espaceurs (21) comportent deux rails (31), lesdits rails (31) comportant des rainures (32), les rails (31) faisant saillie du bâti (20) selon des orientation opposées de sorte que chaque rainure (32) soit apte à loger le bord (17) saillant d’un bloc isolant primaire respectif.
- Dispositif de positionnement selon l’une des revendications 13 à 16, comportant en outre un moyen de positionnement du bâti sur la structure isolante secondaire (2) de manière à agencer les espaceurs (21, 46, 47) à des positions prédéterminées relativement à la structure isolante secondaire (2).
- Dispositif de positionnement selon la revendications 13 ou 14, dans lequel les espaceurs de la pluralité d’espaceurs comportent une paire de pinces (47) agencées sur un support (46) avec un espacement prédéfini entre lesdites pinces (47), les support (46) de la pluralité d’espaceurs formant le bâti, lesdites pinces (47) comportant un dispositif de réglage (48) et deux pattes (49) mobiles, le dispositif de réglage (48) étant apte à déplacer les deux pattes de façon simultanée et d’une distance identique selon des sens opposés afin de définir l’écartement desdites pattes (48).
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KR1020227017739A KR20220088484A (ko) | 2019-10-25 | 2020-10-22 | 밀폐 단열 탱크 코너 구조체를 제조하기 위한 장치 및 방법 |
CN202080075380.9A CN114616078A (zh) | 2019-10-25 | 2020-10-22 | 用于制造密封且热绝缘罐拐角结构的装置及方法 |
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FR1911992 | 2019-10-25 | ||
FR1911992A FR3102533B1 (fr) | 2019-10-25 | 2019-10-25 | Dispositif et procédé de fabrication de structure d’angle de cuve étanche et thermiquement isolante |
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KR (1) | KR20220088484A (fr) |
CN (1) | CN114616078A (fr) |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2691520A1 (fr) | 1992-05-20 | 1993-11-26 | Technigaz Ste Nle | Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température. |
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FR2255548B1 (fr) * | 1973-12-20 | 1976-04-30 | Atlantique Chantiers | |
FR2361601A1 (fr) * | 1976-08-10 | 1978-03-10 | Technigaz | Structure de paroi composite thermiquement isolante et procede de montage dans un reservoir de transport et/ou de stockage de gaz liquefies |
DE4320182A1 (de) * | 1992-06-29 | 1994-01-05 | Emmanuel Perrakis | Vorrichtung zur Verkleidung von Schiffsböden |
FR2781557B1 (fr) * | 1998-07-24 | 2000-09-15 | Gaz Transport & Technigaz | Perfectionnement pour une cuve etanche et thermiquement isolante a panneaux prefabriques |
KR101413880B1 (ko) * | 2012-06-08 | 2014-06-30 | 송재빈 | 선박제작용 기초블럭 |
FR3001945B1 (fr) * | 2013-02-14 | 2017-04-28 | Gaztransport Et Technigaz | Paroi etanche et thermiquement isolante pour cuve de stockage de fluide |
NZ726871A (en) * | 2014-06-03 | 2020-01-31 | Form Brick Pty Ltd | System and method for forming prefabricated building panels |
FR3052227B1 (fr) * | 2016-06-01 | 2018-12-07 | Gaztransport Et Technigaz | Bloc isolant et cuve etanche et thermiquement isolante integree dans une structure porteuse polyedrique |
FR3068763B1 (fr) * | 2017-07-04 | 2020-10-02 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante comportant une corniere. |
FR3073271B1 (fr) * | 2017-11-06 | 2019-11-01 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante |
-
2019
- 2019-10-25 FR FR1911992A patent/FR3102533B1/fr active Active
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- 2020-10-22 KR KR1020227017739A patent/KR20220088484A/ko active Search and Examination
- 2020-10-22 CN CN202080075380.9A patent/CN114616078A/zh active Pending
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2691520A1 (fr) | 1992-05-20 | 1993-11-26 | Technigaz Ste Nle | Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température. |
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FR3102533A1 (fr) | 2021-04-30 |
FR3102533B1 (fr) | 2023-12-22 |
CN114616078A (zh) | 2022-06-10 |
WO2021078869A3 (fr) | 2021-06-17 |
KR20220088484A (ko) | 2022-06-27 |
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